﻿CONTENTS. 
  Vll 
  

  

  Nuinl)er 
  47. 
  

  

  Page 
  

   Art. 
  XL. 
  — 
  Types 
  of 
  March 
  Weather 
  in 
  the 
  United 
  States 
  ; 
  

  

  by 
  O. 
  L. 
  Fassig. 
  (With 
  Plates 
  VI 
  and 
  VII) 
  .... 
  319 
  

  

  XLI. 
  — 
  Some 
  new 
  Minerals 
  from 
  the 
  Zinc 
  Mines 
  at 
  Franklin, 
  

   N. 
  J., 
  and 
  Note 
  concerning 
  the 
  Chemical 
  Composition 
  

   of 
  Ganomalite; 
  by 
  S. 
  L. 
  Penfield 
  and 
  C. 
  H. 
  Warren. 
  339 
  

  

  XLII. 
  — 
  Action 
  of 
  Acetylene 
  on 
  the 
  Oxides 
  of 
  (Copper; 
  by 
  F. 
  

  

  A. 
  GoocH 
  and 
  DeF. 
  Baldwin 
  354 
  

  

  XLIII. 
  — 
  Andesitesof 
  the 
  Aroostook 
  Volcanic 
  Area 
  of 
  Maine 
  ; 
  

  

  by 
  H. 
  E. 
  Gregory 
  359 
  

  

  XLIV. 
  — 
  New 
  mode 
  of 
  occurrence 
  of 
  Ruby 
  in 
  North 
  Caro- 
  

   lina; 
  by 
  J. 
  W. 
  JuDD 
  and 
  W. 
  E. 
  Hidden. 
  With 
  Crystal- 
  

   lographic 
  Notes 
  by 
  J. 
  H. 
  Pratt 
  370 
  

  

  SCIENTIFIC 
  INTELLIGENCE. 
  

  

  Chemistry 
  and 
  Physics 
  — 
  Solidification 
  of 
  Hydrogen, 
  Dewati 
  : 
  Hydrazoic 
  acid 
  and 
  

   its 
  salts, 
  CuRTius 
  and 
  Rissom. 
  382. 
  — 
  Argon 
  and 
  its 
  Combinations, 
  Berthelot, 
  

   383. 
  — 
  Mercury 
  in 
  the 
  Colloidal 
  Condition. 
  Lottermoser: 
  Lithium-ammonium 
  

   and 
  Calcium-ammonium 
  and 
  the 
  Amides 
  of 
  these 
  Metals, 
  Moissan, 
  384. 
  — 
  Action 
  

   of 
  Polassammonium 
  and 
  of 
  Sodammonium 
  on 
  Sulphur, 
  Selenium 
  and 
  Tellurium, 
  

   HuGOT: 
  Short 
  History 
  of 
  the 
  Progress 
  of 
  Scientific 
  Chemistry 
  in 
  our 
  own 
  times, 
  

   W. 
  A. 
  TiLDEN: 
  Refraction 
  of 
  the 
  X-rays, 
  H. 
  Haga 
  and 
  C. 
  H. 
  Wind, 
  385.— 
  

   Radio 
  active 
  substances, 
  E. 
  de 
  Haen: 
  Physikalische 
  Zeitschrift, 
  386. 
  

  

  Geology 
  and 
  Natural 
  History 
  — 
  Geological 
  Time, 
  A, 
  Geikie, 
  38*7. 
  — 
  Estimate 
  of 
  the 
  

   Geological 
  Age 
  of 
  the 
  Earth, 
  J. 
  Joly, 
  390. 
  — 
  Recent 
  Publications 
  of 
  the 
  United 
  

   States 
  Geological 
  Survey, 
  392. 
  — 
  Geology 
  of 
  Old 
  Hampshire 
  County, 
  Massa- 
  

   chusetts, 
  comprising 
  Franklin, 
  Hampshire, 
  and 
  Hampden 
  Counties, 
  B. 
  K. 
  

   Emerson, 
  393. 
  — 
  Later 
  Extinct 
  Floras 
  of 
  North 
  America, 
  J. 
  S. 
  Newberry: 
  

   Geological 
  Survey 
  of 
  New 
  Jersey, 
  Annual 
  Report 
  of 
  the 
  State 
  Geologist 
  

   for 
  the 
  Year 
  1898: 
  Report 
  on 
  the 
  Surface 
  Geology 
  and 
  Autiferous 
  De- 
  

   posits 
  of 
  Southeastern 
  Quebec, 
  R. 
  Chalmers, 
  394. 
  — 
  History 
  of 
  the 
  European 
  

   Fauna, 
  R. 
  F. 
  Scharff, 
  395. 
  — 
  Geology 
  of 
  the 
  Coolgardie 
  Gold 
  field, 
  T. 
  Blatch- 
  

   FORD: 
  Mineral 
  Resources 
  of 
  Kansas 
  for 
  1899, 
  E. 
  Haworth, 
  396. 
  — 
  Catalogus 
  

   Mammalium 
  tam 
  viventium 
  quam 
  fossilium 
  a 
  Doctore 
  E. 
  L. 
  Trouessart: 
  Das 
  

   Tierreich. 
  Eine 
  Zusammenstellung 
  und 
  Kennzeichnung 
  der 
  rezenten 
  Tierfor- 
  

   men, 
  397. 
  — 
  Zoological 
  Results 
  based 
  on 
  Material 
  from 
  New 
  Britain, 
  New 
  

   Guinea, 
  Loyalty 
  Islands 
  and 
  elsewhere 
  A. 
  Willey 
  : 
  Proceedings 
  of 
  the 
  Fourth. 
  

   International 
  Congress 
  of 
  Zoology, 
  A. 
  Sedgwick: 
  Birds 
  of 
  Eastern 
  North 
  

   America 
  : 
  Water 
  Birds, 
  C. 
  B. 
  Cory 
  : 
  Hand-list 
  of 
  the 
  Genera 
  and 
  Species 
  of 
  

   Birds, 
  R. 
  B. 
  Sharpe, 
  398. 
  

  

  Miscellaneous 
  Scientific 
  Intelligence 
  — 
  American 
  Physical 
  Society, 
  398. 
  — 
  Transac- 
  

   tions 
  of 
  the 
  American 
  Microscopical 
  Society 
  : 
  Primer 
  of 
  Forestry, 
  G. 
  Pinchot: 
  

   Statistical 
  Methods 
  with 
  special 
  reference 
  to 
  Biological 
  Variation, 
  C. 
  B. 
  Daven- 
  

   port: 
  Harper's 
  Scientific 
  Memoirs, 
  J. 
  S. 
  Ames, 
  399. 
  

  

  Obituary 
  — 
  Edward 
  Orton, 
  400. 
  

  

  